STUDY OVER OPTICAL ABSORPTION AND EMISSION IN SEMICONDUCTORS
Journal Title: Journal of Science And Arts - Year 2009, Vol 11, Issue 2
Abstract
The study of the optical properties of semiconductors is essential in the field of photovoltaics. The present paper represents a review over the main interests over the electrons emission and absorption and the Schockley Read Hall Statistics used in mathematical simulation of electrons behavior for CAE applications.
Authors and Affiliations
Dorin Let, Andreea Stancu, Valerica Cimpoca
CHEMICAL COMPOSITION OF THE LEAVES AND STEM BARK: METHANOL EXTRACT OF SIDA CORDIFOLIA L.
The study was conducted to evaluate some chemical constituents of the leaves and stem bark of Sida cordifolia. Standard methods were used in all the analysis. Preliminary phytochemical screening indicated the presence of...
COMPLEX SPECTRAL CHARACTERIZATION OF ACTIVE PRINCIPLES FROM MARIGOLD (CALENDULA OFFICINALIS)
The marigold is a very useful species of medicinal plants with many uses in phyto-therapy and cosmetics. The carotenoid pigments in the marigold’s inflorescence represent a fundamental constituent of drugs. The pigment c...
THE TOPOLOGY OF THE SPACES OF MELLIN WHITTAKER TRANSFORMABLE DISTRIBUTIONS
In this paper we have introduced Gelfand Shilove type spaces of Mellin Whittaker transformable distributions. We have also discussed their interrelation and some topological properties of these spaces.
DOSIMETRIC FEATURES OF NATURAL FLUORITE<br /> FROM ROMANIA
Thermoluminescent dosimetric features of two batches of fluorite from Romania (Cavnic and Tulcea) are presented. An initial thermal treatment at 600[sup]°[/sup]C for 60 min. to cleaning of natural dose has been performed...
STUDY TROUGH METALLOGRAPHICAL METHOD AND X-RAY FLUORESCENCE<br /> TECHNIQUE, ON THE SOME ROMAN BROOCHES DISCOVERED AT TOMIS-CONSTANTA
XRF method was used at the same time with a metallographic study in order to determine the concentration of the main compounds of raw materials and, in the same time, of the alloy types used in the ancient period. I...